the actual possibilities of tinycore are so flexible and extensible, i'm a real fan of it.

is this following idea a feature-request for the wishlist or is it already possible?

there is the onboot.lst, but sometimes additionally packages are needed only once, so these seldom used packages should not be loaded every boot.can additionally tcz-packages be loaded just once per bootcode?is it possible to load per bootcode several onboot.lst in one bootcode f.e. lst=onboot_std.lst, onboot_multimedia.lst, onboot_security.lst for loading these three sets std, multimedia and security alltogether?

[ -n "$TARGETLIST" ] || TARGETLIST="onboot.lst"i.e. even if specify multiple lst-bootcodes but they will be processed only the last and only one lst-filebecause the next operation with bootcode value this is read and load extensions in cycle from lst-file

This is something you can already do yourself. Make up your own boot code (LoadOnce= for example) and parse/proc/cmdline for it as shown in the snippet above in your bootsync.sh or bootlocal.sh. Be sure to make up aboot code that is not likely to exist.